Quantum technologies have emerged as vital tools for enhancing mobile communication security. The Samsung Galaxy series now features a quantum random number generator (QRNG) that offers true randomness, strengthening cryptographic protection. Despite its potential, QRNG integration remains largely unexplored in practical applications. This paper investigates the QRNG chip’s integration and functionality in the Samsung Quantum Galaxy smartphone through digital forensics and reverse engineering. We identified a lack of effective QRNG utilization in existing applications and addressed this gap by developing a secure instant messaging and VoIP application that combines QRNG with post-quantum cryptography (PQC). Our solution demonstrates that leveraging QRNG-generated randomness alongside PQC significantly improves security against emerging quantum threats, establishing a foundation for enhanced mobile data protection.

Due to the rapid advancement of social media, a huge amount of data is generated daily. Due to this great spread and expansion of the data at the social or professional level, the risks of securing the information become a challenging job. In this regard, we conducted an in-depth interview to gather specific information about how infected users may be provided with information about recovering their hacked social networking accounts. Further, we have introduced a complete solution to help social network users to improve the idea of using different applications from one appropriate platform. In order to build this secure platform for accessing the security applications such as bank accounts, etc., we set various security methods to access social network websites, such as sending an OTP to their respective mobile devices, email or by fingerprint. Further, we also added a camera to identify the wrong or fake registration process of an intruder. The camera captures an image of the intruder registering to a social network website using the legitimate user’s information. In addition, the application also has a solution for forgetting the password or security questions that are sent to the user via email. Finally, the application saves the password, which can be recovered when the user forgets it.